Activity clock



FIG. 1 is a perspective view of an activity clock with the activitybuttons removed;

FIG. 2 is a front view of an activity clock;

FIG. 3 is an elevation view of an activity clock; and,

FIG. 4 is a perspective view of an activity clock with a plurality ofactivity buttons selectively positioned about the clock face.

The ornamental design for an activity clock, as shown and described.